Troubleshooting Tips - Altec Lansing 251 Mode D'emploi

Headphones
To use headphones with the system, plug them into the labeled
jack on the front of the right satellite. When headphones are
connected, all satellites and the subwoofer are muted.
Powering On
1. After all other connections are made, plug the power cord (on the
back of subwoofer) into an AC wall socket. The speaker system is
now ready to operate.
2. Turn on the audio source.
3. Turn on the Altec Lansing 251 speaker system by pushing the On/Off
button located on the front of the right satellite. A green LED will
light next to the button when the power is ON.
NOTE: Consumers who purchased a 220V or 230V unit, need to ensure
that the power switch, located on the rear of the subwoofer, is in the
ON position.
If the power switch on the rear of the subwoofer is in the OFF position,
the entire unit is shut off.
System Specifications
Power rating conforms to FTC Amplifier Rule #16 C.F.R. Part 432.
Altec Lansing's superior sound comes from our patented Dynamic EQ
technology, which utilizes custom-built, high-fidelity drivers, state-of-the-
art equalization circuitry, and a harmonious mix of the following
specifications:
Sound Pressure Level (SPL):
Total Continuous Power:
Front Speakers:
Rear Speakers:
Center Speaker:
Subwoofer:
System Response:
Signal to Noise Ratio @ 1 kHz input:

TROUBLESHOOTING TIPS

The answers to most setup and performance questions can be found in
the Troubleshooting guide. You can also consult the FAQs in the
customer support section of our Web site at www.alteclansing.com. If
you still can't find the information you need, please call our customer
service team for assistance before returning the speakers to your
retailer under their return policy.
Customer service is available 7 days a week for your convenience. Our
business hours are:
Monday to Friday: 8:00 a.m. to 12:00 midnight EST
Saturday & Sunday: 9:00 a.m. to 5:00 p.m. EST
104 dB
60 Watts RMS
7 Watts/channel @ 4 ohms @
10% THD @ 70 - 22000 Hz 2
Channels Loaded
7 Watts/channel @ 4 ohms @
10% THD @ 75 18000 Hz 2
Channels Loaded
7 Watts @ 4 ohms @ 10% THD
@ 80 – 22000 Hz Single
Channel Loaded
25 Watts @ 4 ohms @ 10%
THD @ 22 – 190 Hz Single
Channel Loaded
35 Hz - 18 kHz (-10 dB)
> 70 dB
MASTER VOLUME
The volume knob on the front of the right satellite is the master
volume control for the speaker system. Turn the knob clockwise to
increase the volume and counter-clockwise to decrease the volume.
SURROUND VOLUME CONTROL
The SURROUND control varies the volume of the left and right
surround speakers. Adjust this control as necessary to create the
optimum sound.The Surround Volume Control operates in the same
manner even on computers that only have stereo outputs.
CENTER VOLUME CONTROL
The CENTER control varies the volume of the center speaker. Adjust
this speaker as necessary to achieve a balanced sound.
SUBWOOFER LEVEL
The Subwoofer Level is located on the back of the subwoofer. Rotating
this control clockwise increases the bass while rotating the control
counter-clockwise decreases the bass. Blend the subwoofer output with
that of the satellites to set the correct volume.
SATELLITE AMPLIFIED SPEAKERS
Drivers (per satellite): One 3" full-range driver
SUBWOOFER
Speaker Drivers: One 5.25 " long-throw woofer
POWER REQUIREMENTS
USA/Canada/and applicable
Latin American countries:
Europe/United Kingdom;
applicable Asian countries;
Argentina, Chile and Uruguay:
ETL / cETL / CE / NOM / IRAM Approved
1-800-ALTEC-88 (1-800-258-3288)
Email: csupport@alteclansing.com
For the most up-to-date information, be sure to check our Web site at
www.alteclansing.com.
© 2002 Altec Lansing Technologies, Inc.
Designed and engineered in the USA and manufactured in our ISO9002
certified factory. United States Patents 4429181 and 4625328 plus other
patents pending.
3
120 V AC @ 60 Hz
230 V AC @ 50 Hz